Well I purchased an oem lightened flywheel and it came today. Yes, I know the pluses and minuses to lightened flywheels and that's why I went with this one. It is only 2 lbs lighter than the Integra Type R flywheel, and 5 lighter than a GSR or LS. The material has been removed from the back or non friction side, and no holes were made in order to lighten it. Also my car does not see any time at the drag strip, which from what I've read is where it hurts you the most.
The shipping was very fast and cheap. It has been machined to be 13 lbs instead of 18 lbs. It has also been balanced and had the friction surface refinished. All for less than $100 shipped with no core charge. I'm looking for feedback and thoughts on the item from people who have an OEM flywheel that has been lightened or anyone else with input. I have posted pics below.

BACK VIEW

FRONT VIEW

SIDE VIEW

 

*twirls finger*

Nyce flywheel.

 

Whats wrong with asking for feedback on a parts performance? Also, Ive never gotten a reman flywheel and would like to know if there is any easy way to check if it is straight and true? I laid a straight edge across the friction surface and it looked like it was contacting the surface uniformly. I will be installing this next weekend once the clutch comes in.


Modified by dlaub25 at 6:15 PM 8/30/2008

 

I didn't get mine machined, I bought an Exedy race one.
It's lasted me 3 years so far, I don't race except for the once in a while when I'm in a hurry. Maybe machined ones are riskier because they were made with the intention of being left whole and machining it could ruin it's integrity.

Really though, if you don't have advice to give, why waste your time typing something stupid like **.
This is HT, people come here for help.

 

I have a machined oem flywheel of similiar weight. I bought it from LSD motorsports a year or so ago and it has been perfect for a daily driver like mine.

 

ACMOC: I was a little worried about having material removed, because like you said they were designed with more material for a reason. One source told me that the extra material is more for the flywheels heat sink characteristics but IDK how reliable he is.

MR3SGTE: What kind of effect has the lightened flywheel had on the engines ability to keep its RPMs up? I read that although it makes the engine rev up more eaisly it also makes it wind down faster. I'm not real worried though its not extremely light.

(BTW his post was a lot nastier but he changed it right after posting. I think I still have the email notice of it.....

The following reply was posted by 89s1:

This isn't a "showoff ur new parts" kinda forum.

No technical info? No thread.

Go bolt it up and take pictures of your hands dirty and tell us that in order to do the job we need special 1 point sockets. Something people might learn something from, other than that you like shiney objects.

I think he meant to say 12 point sockets and I like how he said this isnt a showoff your parts kinda forum although that was not my intention he seems to do just that here
https://honda-tech.com/zerothread?id=2010594
Sorry about that but I needed to vent. I guess you just have to ignore the BS like every where else in the world )


Modified by dlaub25 at 12:02 AM 8/31/2008

 

Yep Yep

I think you'll be fine, as long as there's no cross drilling, it stays able to endure the stress as it was suppose to, I think. It should last you a while.

A lighter flywheel is suppose to let the engine spin it faster I think, so you get higher rpms quicker.
So I guess that means, the difference between BHP and HP at the wheels is less too

 

Yeah, thats the idea, less time to get the RPMs up, that also means they will fall faster too from what I have been told. In the pic below I marked the area where the material was removed from the back of the flywheel. You can see its sort of stepped so that it still sits at the proper position in relation of the side of the bottom end of the engine. I would be interested to see the back of an aftermarket flywheel, all of the sites I've looked on only show the friction surface. I would like to know if they use the same basic design.

Thanks for the feedback

 

LOoks good....